Life cycle

LIFE CYCLE

  • The eggs are coughed up and swallowed and voided in the faeces. They hatch immediately in the environment or swallowed by a suitable I/H.
  • Even though the eggs hatch outside the host further development occurs only after ingestion by I/H. The larvae can survive upto three months in moist place.
  • Further development of larvae occurs only after ingested by suitable I/H like earthworm.
  • In the earthworm, the development of larvae occurs in the blood vessels, wall of oesophagus and proventriculus.
  • They reach infective stage in about 10 days. The infection of D/H by ingestion of infected earthworm.
  • Lifecycle and pathogenesis are similar to the Dictyocaulus species.
  • Highest incidence of infection occurs in 4 to 6 months old pigs.
  • Metastrongylus elongatus spreads swine influenza virus.
Last modified: Friday, 23 September 2011, 11:32 AM